EMISSIONS OF CO2 FROM SOME SOILS

Emissions of carbon dioxide were measured from diverse soils in the su rroundings of Malaga (Spain). These measurements were carried out by t wo methods. A direct method using a static open chamber technique and another indirect method obtained from simultaneously measured Rn-222 B ur and concentration profile measurements of Rn-222 and CO2 in the air of soil. The directly measured CO2 fluxes at investigated sites is sl ightly higher than CO2 fluxes derived from the indirect method. Carbon dioxide emitted by soils, showed a mean direct flux to the atmosphere of 5 mmol m(-2) h(-1) .